Who are Spain's Enemies?

Answer 1

This depends entirely on what period of time is in question. Spain has had several Islamic Caliphates, especially the Nasrid Kingdom be its principle adversaries, but it has also had France, England, the Netherlands, Prussia, the United States, and the Soviet Union as principle adversaries in later centuries.

Answer 2

Spain has no declared enemies. Somo terrorist groups have declared holy war to Spain, but they have also done the same thing to USA, UK, France, etc.

Answer 3

One of spains rivals were Portugal